Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.We are seeking a highly skilled and motivated Email Security Expert to join our team, providing crucial support to the Network Operations Security Center (NOSC). You will possess a deep understanding of email security protocols, threat detection, and mitigation strategies. You will play a critical role in protecting DHS communication channels from cyber threats and ensuring the integrity and confidentiality of our email systems. Configures tools, settings, alerts, and notifications to improve the enterprise email resilience capabilities.Responsibilities:* Design, implement, and develop advanced email security solutions to protect email systems from cyber threats, including phishing, malware, and other email-borne attacks* Monitor and analyze email traffic for signs of malicious activity, employing advanced threat detection techniques* Develop and enforce email security policies, standards, and procedures* Conduct regular security assessments and vulnerability scans on email systems* Collaborate with vendors and other security teams to investigate and respond to security incidents and outages involving email* Provide expert guidance and recommendations on email security best practices to stakeholders.* Stay current with the latest email security trends, threats, and technologies* Conduct training and awareness programs for DHS staff on email security practices* Prepare detailed reports on security incidents, findings, and recommended actions* Contributes to and executes the design, development, and implementation of the NOSCs portion of the enterprise email security program* Interacts, coordinates, and collaborates with the Microsoft Office 365 and identity teams, working with external email security vendors (e.g., Proofpoint)* Responds to and coordinates responses to email security and availability events* Monitors email queues and tool alerts to identify issues in advance* Participates in response activities to email outages Basic Qualifications:* A bachelor’s degree in computer science, information technology, cybersecurity, or a related field of study.* A minimum of (8) eight years of experience in email security, with a strong focus on threat detection and mitigation* In-depth knowledge of email security protocols (e.g., SMTP, DMARC, DKIM, SPF) and encryption technologies* Proficiency with email security tools and platforms (e.g., Proofpoint, Mimecast, Cisco Email Security, Microsoft Defender for Office 365)* Experience with Security Information and Event Management (SIEM) systems* Strong understanding of cyber threat intelligence and incident response processes Preferred Qualifications:* 8570 compliant certifications, such as: Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), Certified Ethical Hacker (CEH), or similar are highly desirable.* Master’s degree* Experience working in a government or defense environment.* Familiarity with DHS policies and procedures.* Knowledge of broader cybersecurity frameworks (e.g., NIST, ISO 27001)Clearance Requirements:* Must be U.S. citizen* Must hold a Secret clearance* Must be able to obtain and maintain DHS EOD suitability* Must be able to obtain and maintain a Top-SecretPhysical Requirements: * Must be able to remain in a stationary position for extended periods of time.* Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.* Constantly operates a computer and other office productivity machinery, such as a calculator, copy, machine, and computer printer.* The person in this position frequently communicates with co-workers, management, and customers,* which may involve delivering presentations. Must be able to exchange accurate information in these situations.